Hair-clipper.



F. M. S. PENNACCHINI.

HAIR CLIPPER.

' APPLICATION vFILED Nov. 11, 1915.

1,17 5,873. Patented Mar.14,1916.

322 Manier: N@f ,li'rvmcisJW.S.Fammi:chiami,

IINIIED STATES FA'IEN'I FFIGE.

FRANCIS M. S. PENNACGHINI, OF HAVERHILL, MASSACHUSETTS.

HAIR-CLIPPER.

Application filed November 11, 1915.

To all whom t may concern Be it known that I, FRANCIS M. S. PEN-NAcci-HNI, a subject of the King of Italy, and a resident of Haverhill,in the county of Essex and State of Massachusetts, have invented certainnew and useful Improvements in Hair-Clippers, of which the following isa specification.

This invention relates to hair clippers and has for its object theprovision of a device of this character which is adapted to regulate thelength of the hair cut.

The invention consists in providing the clippers with a movable comb ofvarying thickness which may be advanced relatively to the cuttingmechanism as the latter is moved upwardly through the hair during` thecutting operation.

The invention further consists in certain novel features of constructionand arrangement of parts which will be fully understood by reference tothe description of the drawings and to the claims hereinafter given.

Of the drawings: FiOure 1 re oresents a plan of a pair o-f hair clippersembodying the principles of the present invention. Fig. 2 represents anelevation of the same with a portion cut in section on line 2-2 onFig. 1. Fig. 3 represents a transverse section of the same on line 3-3on Fig. 1. Fig. 4f represents an inverted plan of the same. Fig. 5represents a transverse section of the slidable comb on line 5 5 on Fig.2, and Fig. 6 represents a partial view of the development of the camcylinder drawn to an enlarged scale.

Similar characters designate like parts throughout the several figuresof the drawings.

In the drawings, 10 is a base plate having secured thereto the casing 11having formed integral therewith the handle 12. The base plate 10 isprovided with a plurality of teeth 13 adapted to coact with the teeth 14formed in a plate 15 superimposed upon the base plate 10, said plate 15being adapted to be reciprocated transversely of the base plate 10 bymeans of the actuating member 1G mounted to oscillate about the pivotpin 17 secured to the base plate 10 and casing 11 by means of the nut18.

The actuating member 16 is provided with a handle 19 which is retainednormally separated from the handle 12 by means of the spring 20surrounding the pivot pin 17 with one end secured in the casing 11, andthe Specification of Letters Patent.

Patented Mar. 1d, 1916.

Serial No. 60,958.

opposite end bearing against the pin 21 projecting from the member 16.

Vhen the operator grips the handles 12-19 and moves them toward eachother, the teeth 13-14 will coact to cut the hair as the clipper i-sforced through said hair.

The cutting device just described is substantially the same as the hairclippers now in general use. rFliese clippers, however, do not provideany gage or other means for regulating the cutting of the hair, which itis obvious is a desirable object to attain so that the hair may be morereadily and uniformly cut. To this end the base plate 10 has slidablymounted thereon a frame 22 having a comb 23 removably positionedtherein.

'Ihe frame 22 has two rearwardly eXtending arms 24 provided with teeth25 with which mesh the teeth of the gears 26 secured to a revolubleshaft 27 mounted in bearings in the ears 28 proj ecting from the handle12 and the arm 29 formed integral with the casing 11. The gears 26 aredriven by the pinions 30 secured to and revoluble with the shaft 31mounted in bearing in the ears 28. Between the ears 28 and mounted uponthe shaft 31 is a cam cylinder 32 provided with a zigzag cam path 33terminating in a path 34 parallel to the aXis of said cyl.- inder 32.I/Vhen the cylinder 32 is revolved the gears 30, 26 will be rotated, andin their rotation the gears 26 in engagement with the racks 25 willcause the frame 22 to be advanced toward the teeth 14, thereby causingthe comb 23 to assume a new position relatively to the cutting teeth13'111.

The comb 23 has its front under side inclined as at 36 and when theclippers are in use this inclined surface 36 bears upon the scalp sothat as the comb is advanced the cutting teeth 13-14 are moved fartheraway from the surface of the scalp and the hda-ir is cut longer. Thegradual advancement o-f the comb 23 is accomplished by the manipulationof the handles 1219, causing the rotation of the cam cylinder 32. A rod37 is mounted in a bearing in the handle 12 and in another bearing inthe end of the arm 29 through which it extends with the end contactingwith a bearing face 38 on the handle 19. A member 39 is secured to therod 37, said member having a finger 40 extending into the cam path 33 ofthe cylinder 32 and retained in said path by the helical spring i1surrounding the rod 37 between the member 39 and the ear 42 projectingdownwardly from the handle 12. The spring 41 is not only adapted to movethe rod 37 about its axis, thereby retaining the pin 40 in the cam path33, but it also acts upon the member 39 forcing the rod 37 outwardlyagainst the handle 19 and returning it to its normalposition as shown inFig. 1.

lWhen the handle 19 is moved toward the handle 12, the member 39 Will bemoved therewith, this causing the linger 40 in the cam path 33 to rotatethe cylinder 32 as it moves against the inclined Wall of the cam path.When the handle 19 has been moved its full distance toward the handle 12the pin 40 will enter the pocket 42 and when the gripping pressure isreleased from the handles 12-19 and the spring 41 forces the handle 19outwardly to its normal position, the pin 40 Will contact with the Wall43 and continue the rotation of they cylinder- 32 in the same directionuntil said pin 40 reaches the path when the pin 40 Will reciprocate in astraight line Without imparting further movement to the cam cylinder 32.Reverse movement of the pinion 30 is prevented by the paivl 44 engagingthe teeth thereof as shown in Fig. 2. A spring 45 normally retains thepaWl 44 in engagement with said teeth until disengaged by the operatorpressing down on the pad 46 to disengage the pin 40 from the cam path33. The member 39 provided With the pad 46 is secured to the rod 37 androcks therewith so that When the rod 37 is rocked by the depression ofthe pad 46 the finger 47 Will engage the cam surface 48 and disengagethe pawl 44 from engagement-With the teeth of said pinion 30. When thepavvl 44 is disengaged in this manner the. operator may manually returnthe comb 23, frame 22, gears 26-30, and cam cylinder-32 to their normalpositions, and then by releasing contact With the pad 46 Athe spring 41Will return the pin 40 into engagement With the cam path 33 ready foranother operation.

1t is believed that the operation of the device and its advantages willbe fully understood Without further description.

Having thus described my invention, I claim:A f

c1. ln a device of the class described, the combination of a cuttingmechanism; a slidable comb thereon; a revoluble member for controllingthe position of said comb having a peripheral cam groove; and movablemeans actuated by the operating means of said cutting mechanismincluding a pin engaging said cam groove and adapted in its movement torotate said cam.

2. 1n a device ot the class described, the combination of la cuttingmechanism; a slidable comb thereon; a revoluble member for controllingthe position of said comb having a peripheral cam groove; a slidablemember actuated by the handles of said cutting mechanism; and a lingerthereon engaging said cam groove whereby said cam Will be rotated duringthe movement of said lslidable member.

3. 1n a device of the class described, the combination of a cuttingmechanism; a slidable comb thereon; a revoluble member for controllingthe position of said comb having a peripheral cam groove; a slidablemember actuated by the handles of said cutting mechanism; a lingerthereon engaging said cam groove; and means for disengaging said lingerfromy said cam groove.

4. In a device of the class described, the combination of a cuttingmechanism; a slidable comb thereon; a revoluble cam member torco-ntrolling the position of said comb having a zigzag cam path; andmeans actuated by the operating means of said cutting mechanism forengaging said cam path and revolving said can 5. In a device of theclass described, the combination of a cutting mechanism; a comb slidablethereon and provided with a plurality of rack teeth; gearing meshing.With said rack teeth; a revoluble cylinder for actuating said gearinghaving a peripheral cam groove; and means engaging said cam groove andcontrolled by the movement of said cutting mechanism for actuating saidcam cylinder.

6. In a device of the class described, the combination of a cuttingmechanism; a comb slidable thereon and provided with a plurality of rackteeth; gearing meshing With said` rack teeth: a revoluble cam cylinderfor actuating said gearing-means controlled by the movement of saidcutting mechanism forl actuating said cam cylinder; a device fornormallv preventing reverse movement of said gearing; and means foroperating said device to hermit the reverse movement of said gearing'and the return of said comb to its normal position.

7. In a device of the class described, the combination of a cuttingmechanism a comb slidable thereon having variable thicknesses;

a revoluble member havinga peripheral cam groove; means -actuated bysaid cutting mechanism for rotating said cam member; Y

and mechanism interposed between said cam member and said combwhereby-said comb is advanced relatively to said cutting mechanism, saidcomb, operating mechanism including a pin engaging the groove of saidvcam member. Y

Signed by me at 4 Post Oiiice Sq., Boston, Mass., this 8th day ofNovember, 1915.

FRANCIS M. S. PENNACCHINI.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washingtonl D. G.

